Meloetta DONK

With Meloetta, you can donk easily! Your plan is to go second. Use Elesa to attach a fusion strike energy to Meloetta, then manually attach, and swing! If you have both choice belt and a power tablet, you should be able to get around 210-240, enough to knock out Vs and ex s. No need for choice belt against single prizers, though. 

This strategy can also work with Deoxys, if you feel like you need more HP against Sableye or Cramorant, you will just have to switch out fog crystal, psychic energy,

With Meloetta, you can donk easily! Your plan is to go second. Use Elesa to attach a fusion strike energy to Meloetta, then manually attach, and swing! If you have both choice belt and a power tablet, you should be able to get around 210-240, enough to knock out Vs and ex s. No need for choice belt against single prizers, though. 

This strategy can also work with Deoxys, if you feel like you need more HP against Sableye or Cramorant, you will just have to switch out fog crystal, psychic energy, and meloetta for  4 Deoxys FST, 4 DTE, and 4 Nest ball.

Pros: Extremely fast and can get turn one knockouts, which in turn can also slow them down if you keep steam training through their main boss attackers they place down to set up.  Is also fun to play on latter to catch people off guard.

Cons: Has no way of recycling or playing for the slow game, can also burn through cards easily. If your opponent chooses to stall with Diancie i.e, you might be in trouble depending on what they are playing.

Note: If you find you want cards back in your hand from discard, play FST Smeargle.